Mold for expansion-joint strips



A. c. Flscl-n-:R

MOLD FOR EXPANSION JOINT STRIPS Original Filed May S. 1922 '20 vation of the mold With themolding strip `VI claim:`

.Patented Dec.` 6, i927. i y I' 'l j i i l i,

ALBERT C. FISCHER, OF CHICAGO, LLINOIS.

MOLD ronl EXPANSION-JOINT srmrs. f'

Driginal application( filed May 26, 1922, Serial No. 563,832. Divided and this application filed April 19,-."

1926. Serial No. 103,001.` v

This application is a division of my apso that the material from which the joint plication Serial No. 563,832, filed May 2G, is molded may be poured into the mold thus 1922, for expansion joint installer, andhas formed and permitted to set. particular reference lo the subject matter In most instances the joint material Will b' described With reference to Figures 2 and 3 .be producedvfrom a mixture of asphalt and 45 of my said application. v Some manner of filler suitable for the pnr-A The primary object of my present invenpose'. The projections 7- on the Vstrips tion is to provide means whereby strips of '8- may be made by employing` doWels, expansion material may be molded on the pinsfor any other suitable means which Will Y 10 job' so to speak, so as to make it possible project lfromthesurface of the strips and 50 for contractors and others dealing in the inaccommodated,by'theopenings -G-V-of the stalla-tion of joint to carrya simple convenbase. Y, ient installing equipment on the job and In putting the idea into practice itis promold vthejoint assit is required. posed to supply the contractor With joint 15 In the accompanying drawing which il` material in suitable packages.V 55 lustrates the preferred embodiments of my The strips of joint to be formed will ordi invention Figure lis a plan'view of the narilybe in lengths `of about five feet and mold; Figure 2 is a plan view of the moldof a thickness of one quarter to three quarp' ing strip Figure 3 is a cross-section in eleters of an inch.

applied thereto. A knock-down form for molding eXpan- Referring new to the drawings in detail sion joint strips,comprising a base board -5-n represents the molding boardv or base having aV series of aligned dovvel holes in its of the mold, Which may be produced of anyv thickness along the margins thereof *andY 25 material suitable for the purpose, for in-spacedinvvardly from the margins' thereof, 65

stance, sheet metal, Woo-d, or composition. and side andend Walls for the base,veach hav The baseV in this respect simplyl comprises a ing dowel pins imbedded therein andadaptedp boa-rdlike member having a series of perfora- .to project from the surface thereof in aligntions or openings 6- at spaced intervals ment intermediate*themargins ofthe Walls,

A 3o along its respective edges. These perforasaid-dovvel pinsjadapted to engage'the dovvel 7o 4o so as to make the desired marginal edge tions or openings may or may not extend lholesjfor attaching the Walls to the base vvith thru the thickness of the base, but the same the outer margins of thevvalls flush With the should be made so as to receive the projecsidesof the base, the Walls being relatively tions -7-- on the strips `8, so .that the Wide as compared to their height;`Whereby a strips may be applied to the base ina manrelativelybroad supporting contact is vmade 75 ner best shown in Figure l, to form side betweenthevvalls and .the surface ofthe base walls for the mold The strips will be of on opposite sidesof the doWel-pins.

the proper VWidth and length to cooperate Signed at Chicago, Illinois, this 13th dayv Y With one another When applied to the base, of April, 1926. Y 4 j ALBERT CD FISCHER.' 

